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Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Engine / 2Gr-fe engine control system / Sfi system / How to proceed with troubleshooting

HINT:

The intelligent tester can be used in steps 2, 3, 4, 6 and 9.

1 VEHICLE BROUGHT TO WORKSHOP

2 CONNECT INTELLIGENT TESTER TO DLC3

HINT:

If the display indicates a communication fault in the tester, inspect the DLC3.

3 CHECK DTC AND FREEZE FRAME DATA

(a) Check for DTC(s) and freeze frame data (See page ES- 40).

HINT:

Record or print the DTCs and freeze frame data, if necessary.

4 CLEAR DTC AND FREEZE FRAME DATA

(a) Clear the DTC(s) and freeze frame data (See page ES- 40).

5 CONDUCT VISUAL INSPECTION

6 SET CHECK MODE DIAGNOSIS

(a) Set the check mode (See page ES-43).

7 CONFIRM PROBLEM SYMPTOMS

HINT:

If the engine does not start, perform steps 9 and 11 first.

Result

8 SIMULATE SYMPTOMS

9 CHECK FOR DTCS

(a) Check for DTCs (See page ES-39).

Result

10 REFER TO DTC CHART

HINT:

Refer to the DTC chart (See page ES-56).

GO TO STEP 13

11 CONDUCT BASIC INSPECTION

HINT:

Refer to "BASIC INSPECTION" (See page ES-13).

Result

12 REFER TO PROBLEM SYMPTOMS TABLE

HINT:

Refer to "PROBLEM SYMPTOMS TABLE" (See page ES- 27).

Result

13 CHECK ECM POWER SOURCE CIRCUIT

HINT:

Refer to "ECM POWER SOURCE CIRCUIT" (See page ES- 437).

14 CONDUCT CIRCUIT INSPECTION

Result

15 CHECK FOR INTERMITTENT PROBLEMS

HINT:

Refer to "CHECK FOR INTERMITTENT PROBLEMS" (See page ES-13).

GO TO STEP 17

16 CONDUCT PARTS INSPECTION

17 IDENTIFY PROBLEM

18 ADJUST AND/OR REPAIR

19 CONDUCT CONFIRMATION TEST

END

System diagram
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Check for intermittent problems
1. CHECK FOR INTERMITTENT PROBLEMS HINT: For use of the intelligent tester only: Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with an intelligent teste ...

Other materials:

Intake Air Temperature Circuit/ Intake Air Temperature Circuit Low Input/ Intake Air Temperature Circuit High Input
DTC P0110 Intake Air Temperature Circuit DTC P0112 Intake Air Temperature Circuit Low Input DTC P0113 Intake Air Temperature Circuit High Input DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in ther ...

Short to B+ in Door System Communication Bus Malfunction/ Short to GND in Door System Communication Bus Malfunction
DTC B1214 Short to B+ in Door System Communication Bus Malfunction DTC B1215 Short to GND in Door System Communication Bus Malfunction DESCRIPTION DTCs B1214 and B1215 are output when a short to +B or the body ground occurs on the communication bus. Detecting this condition disables all the ...

Taking out the jack and tools
Remove the cover. Remove the adapter socket. Remove the jack. Remove the wheel nut wrench. ...

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